Three grand essentials to happiness in this life are something to do, something to love, and something to hope for.
Mathematics is not about numbers, equations, computations, or algorithms: it is about understanding.
对任何领导者来说,最重要的是培养更多的领导者。
世界不是一个令人愉快的地方,但它是我们唯一拥有的。
我们最爱的故事会永远活在我们心中。